Three eccentric hard seal butterfly valve D343

Three eccentric hard seal butterfly valve D343

Three eccentric butterfly valve Co. Ltd. Shanghai Yang production, is widely used in medium temperature less than 425 DEG C, petroleum chemical industry, metallurgy, electric power and water supply and drainage and municipal construction and other industrial pipelines, adjust the flux and set off fluid. Materials are cast iron, cast steel and stainless steel.

Three eccentric butterfly valve seat installation structure has two kinds, most of the convenience for the installation of the butterfly board, but Tritec uses the body seat structure, the valve seat installed on the body. The advantage is that compared with the butterfly valve seat, greatly reduces the chance of the valve seat directly contact the media, thereby reducing the degree of erosion of the seat, extending the service life of the valve seat.

Three eccentric butterfly valve to high temperature, must use hard seal, but the leakage is large; to zero leakage, must use soft seal, but not resistant to high temperature. In order to overcome the contradiction of double eccentric butterfly valve, and the butterfly valve third times eccentric. The structural characteristics of the stem axis eccentric position at the same time, the double eccentric butterfly plate sealing surface of the conical cylinder axis deviation in the body axis, that is to say, the sealing section after the third eccentric, the disc is no longer really round, but oval, the shape of the sealing surface and thus also asymmetric, one side in the center of the body line, the other side of the body is parallel to the center line. This is the third most important feature is the eccentric fundamentally changed the seal structure, the location is no longer sealed, but the torque seal, it is not dependent on the elastic deformation of the valve seat, but rely entirely on the valve seat contact pressure to achieve the sealing effect, therefore one solution to this problem zero leakage metal seat, and because of the contact surface pressure and the medium pressure is proportional to the high pressure high temperature is also smoothly done or easily solved.

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技術(shù)參數(shù)

主要外形和連接尺寸

公稱通徑		結(jié)構(gòu)長(zhǎng)度		外形尺寸										連接尺寸
公稱通徑		L		H	D343H			D643H			D943H			0.6MPa			1.0MPa
mm	inch	短	長(zhǎng)	H	H1	A1	B1	H2	A2	B2	H3	A3	B3	D	D1	Z-d	D	D1	Z-d
50	2	108	150	112	350	180	200	625	245	72	530	250	255	140	110	4-14	165	125	4-18
65	2?	112	170	115	370	180	200	625	245	72	530	250	255	160	130	4-14	185	145	4-18
80	3	114	180	120	380	180	200	645	245	72	565	250	255	190	150	4-18	200	160	8-18
100	4	127	190	138	420	180	200	675	355	92	600	250	255	210	170	4-18	220	180	8-18
125	5	140	200	164	460	180	200	715	355	92	640	250	255	240	200	8-18	250	210	8-18
150	6	140	210	175	555	270	280	800	355	92	705	300	315	265	225	8-18	285	240	8-22
200	8	152	230	200	760	400	425	850	250	170	775	300	315	320	280	8-18	340	295	8-22
250	10	165	250	243	830	400	425	925	250	170	945	300	315	375	335	12-18	395	350	12-22
300	12	178	270	250	895	450	560	1035	450	220	1070	300	315	440	395	12-22	445	400	12-22
350	14	190	290	280	950	450	560	1070	450	220	1140	300	315	490	445	12-22	505	460	16-22
400	16	216	310	305	1190	535	580	1190	450	220	1210	300	315	540	495	16-22	565	515	16-26
450	18	222	330	350	1255	535	580	1250	650	280	1335	575	414	595	550	16-22	615	565	20-26
500	20	229	350	380	1305	535	580	1290	650	280	1415	575	714	645	600	20-22	670	620	20-26
600	24	267	390	445	1340	570	660	1455	850	380	1605	656	810	755	705	20-26	780	725	20-30
700	28	292	430	480	1520	750	550	1585	850	380	1844	656	810	860	810	24-26	895	840	24-30
800	32	318	470	530	1710	750	550	1700	1250	380	2040	656	810	975	920	24-30	1015	950	24-33
900	36	330	510	580	1810	750	550	1865	1250	380	2255	785	863	1075	1020	24-30	1115	1050	28-33
1000	40	410	550	650	1960	900	750	2015	1250	380	2380	785	863	1175	1120	28-30	1230	1160	28-36
1200	48	470	630	760	2250	1000	925	2250	1250	380	2640	785	863	1405	1340	32-33	1455	1380	32-39
1400	56	530	710	850	2435	1000	925				2886			1630	1560	36-36	1675	1590	36-42

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Shanghai yangyi valve co. LTD.

公司地址:No. 25, lane 801, zhongwang road, zhujing industrial park, jinshan district, Shanghai.

郵政編碼:

總機(jī)： 021-57472229

電話： 021-57472229

全國(guó)客服熱線：021-57472227

電子郵箱：hsf518@163.com

傳真：021-57472230

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Three eccentric hard seal butterfly valve D343

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Three eccentric hard seal butterfly valve D343

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